Shimano Acera RD-M3020-SGS Rear Derailleur - 7/8 Speed Long Cage Black keyword search-Slate T4 5mm chainline designed for Super

5mm chainline designed for Super Boost+ spacing

Lighter and more stiff than original chainrings these provide a super smooth pedaling sensation

Easily packed and cleared out

while the advanced Single Density Body Geometry 3D Chamois offers targeted cushioning and ergonomic support

Shimano Acera RD-M3020-SGS Rear Derailleur - 7/8 Speed Long Cage Black keyword search-Slate T4 5mm chainline designed for SuperThe Shimano Acera RD M3020 rear derailleur features Double Servo technology to provide smooth precise shifting and helps you ride challenging terrain with fewer interruptions. Double Servo mechanism enables the rear derailleur to move in an optimum path Versatile performance and wide compatibility SGS Long cage Rear Der Shifter Compatibility Shimano Mountain Rear Derailleur Mount Type 10x1 Standard Drivetrain Speeds 7 Chain Wrap Capacity (teeth) 45